chore: remove abort controller polyfill (#251)

* chore: remove abort controller polyfill

* test: update test case and remove AbortController export

* docs: update doc for abort controller

README.md

@@ -725,7 +725,9 @@ clientB.interceptors.request.use(
 Base on [AbortController](https://developer.mozilla.org/en-US/docs/Web/API/AbortController) that allows you to abort one or more Web requests as and when desired.
 
 ```javascript
-import Request, { AbortController } from 'umi-request';
+// polyfill abort controller if needed
+import 'yet-another-abortcontroller-polyfill'
+import Request from 'umi-request';
 
 const controller = new AbortController(); // create a controller
 const { signal } = controller; // grab a reference to its associated AbortSignal object using the AbortController.signal property

README_zh-CN.md

@@ -722,7 +722,9 @@ clientB.interceptors.request.use(
 基于 [AbortController](https://developer.mozilla.org/zh-CN/docs/Web/API/FetchController) 方案来中止一个或多个DOM请求
 
 ```javascript
-import Request, { AbortController } from 'umi-request';
+// 按需决定是否使用 polyfill
+import 'yet-another-abortcontroller-polyfill'
+import Request from 'umi-request';
 
 const controller = new AbortController(); // 创建一个控制器
 const { signal } = controller; // 返回一个 AbortSignal 对象实例，它可以用来 with/abort 一个 DOM 请求。

package.json

@@ -46,7 +46,6 @@
     "whatwg-fetch": "^3.0.0"
   },
   "dependencies": {
-    "abort-controller": "^3.0.0",
     "isomorphic-fetch": "^2.2.1",
     "qs": "^6.9.1"
   },

src/index.js

@@ -1,8 +1,7 @@
 import request, { extend, fetch } from './request';
 import Onion from './onion';
 import { RequestError, ResponseError } from './utils';
-import { AbortController, AbortSignal } from './cancel/abortControllerCancel';
 
-export { extend, RequestError, ResponseError, Onion, fetch, AbortController, AbortSignal };
+export { extend, RequestError, ResponseError, Onion, fetch };
 
 export default request;

test/cancel/abortControllerCancel.test.js

@@ -1,5 +1,5 @@
 import createTestServer from 'create-test-server';
-import request, { AbortController } from '../../src/index';
+import request from '../../src/index';
 
 const writeData = (data, res) => {
   res.setHeader('access-control-allow-origin', '*');
@@ -17,7 +17,7 @@ describe('test abortController', () => {
     server.close();
   });
 
-  const prefix = api => `${server.url}${api}`;
+  const prefix = (api) => `${server.url}${api}`;
 
   jest.useFakeTimers();